Nut



FIG. 1 is a perspective view showing our new design for a nut, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 2 is a front view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 3 is a right side view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 4 is a rear view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design; and,

FIG. 5 is a left side view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a nut, as shown and described. 